Wire-line drilling clamp



Sept. 28 1926. 1,601,197

c. s. WRIGHT WIRE LINE DRILLING CLAMP Filed Feb. 10, 1926 2 Sheets-Sheet 1 u I N R. "10 -w/ g s I; ATTORNEY 2 C. S. WRIGHT WIRE LINE DRILLING CLAMP Sept. 28 1926. 1,601,197

Filed Feb. 10, 1926 2 SheetsSheet 2 l I I 11 INVENTOR. Q 31 w BYgi/V ATTORNEY Patented Sept. 28, 1926.

. UNITE CLYDE S. WRIGHT, OF TOLEDO, OEIO, ASSIGNOR TO THE NATIONAL SUPPLY COMPANY,

OF TOLEDO, OI-ICED, A CORPORATION OF OHIO.

VIBE-LINE DRILLING OLAME.

Application filed February My invention relates to wire-line drillingby; Fig. 2, and end elevation,'lool :ing at Fig. 1 from the right; Fig. 3, a plan view of the clamp closed'and' gripping a wire line shown in crosssection; Fig. 4, a plan view of the clamp open; Fig.0, a section on the line'VV on Fig. 1,; Fig' 6, a perspective view of one ofthe fulcrum blocks;

and Fig. 7, a longitudinal section in the plane of the axial center of the pin 26, the levers being broken 01f.

On the drawin 1 and 2 stantially a like except that one. as .1, is right handed and the other, as'2, is left handed. The vertical opposed faces 3 and 4 of the levers are provided near one end with opposed vertical grooves containing vertical slips r liners '5 and 6 arcuate in horizontal orcross section, the opposing facesof the liners forming, when the levers are approximately in closed or clamping positions, as shown in Fig. 3, a cylindrical seat for engaging and gripping the wire line 7 The liners are held in place by the bolts 8 passed through the levers and into the liners. V Y

Just beyond the liners and 6 the levers have the opposed horizontal holes 9. and vertically below the holes 9 the opposed horizontal holes 10 parallel with the holes 9. The'holes in each lever have their front and rear walls converging outwardly ordiverging toward the faces 3 and 4, so that preferably the inner walls of the openings will be approximately in the same vertical plane when the levers are closed as in Fig' designate two clamping levers or members which are sub 10, was. Serial No. 87,303.

facesof the levers. Vertically above and below each of the holes 9 and 10 in each lever and in the outer faces thereof is a vertical V-shaped notch or groove 13, scrving as fulcrums of the levers. The bolts 11 and 12 carry the fulcrum blocks or plates 1 1 and 15, the formeropposite the outer face of the lever 1 and the latteropposite the outer face of. the lever 2. The faces of the block 1 1 and 15 next tot-he levers have the vertical V-shaped fulcrum ribs or knifeedges 16 seated'in the grooves 13. Nuts 17 are screwed on the ends of the bolts and against the outer faces of the fulcrum blocks to secure the levers, blocks and bolts into a mechanical unit so that, when a wire line 7 is between the liners 5'and 6, and theinner or handle ends 'of the levers are brought toward each other, the ribs 16 will be fulcrum lines cooperating with thefulcrum grooves 13 to make the levers apply clamping pressure against the wire line. bolts permit adjustment of the distance between the fulcrum block to compensate for wear of the fulcrums or of the liners or both.

The handle end of one of the levers, as 1, is in the elongated eye of the yoke 18 which is limited in its movement towardgripping end of the lever by the. shoulders 19 on the sides of the lever 1, a pin 20 passing through the lever 1 and extending beyond its sides to prevent the yoke from slipping ofi from the lever, the yoke being between theshoulder 19 and the pin. The eye of the yoke is sufiiciently long to he slipped over the handle end of the lever 2 which may have on its outer face the lug 21, in front-of which the seat 22 of the yoke rests to prevent the latter from slipping off from the lever 2. The yoke is provided with the screw 23 which is operated by the crosshandle 24 and works with its inner end in the eye of theyoke and against the outer face of the lever 1, to draw the levers 1 and 2 toward each other when the yoke embraces bothhandle ends, as in Fig. 3 in the operation of clamping the wire line 7 to its seat in the liners.

The upper faces of the levers 1 and 2 are provided above the bolts 11 with the upstanding lugs 25 having holes 32 and 33 in which the pin 26 fits loosely so as not to interfere with the opening and closing movements of the levers 1 and 2. Cotterpins 27 or the like are passed through the pin 26 The bears near its outer erds on the outer ec i 35 ot the holes. The opposite edges or p tions of the holes hear against the opposite sides of the pins.

It the lever 2 is moved away from the lever 1. it will move tor a short angular distance without putting any stress on the pin 26. Soon however the diagonally ogposite edges 36 and 37 engage the central outer and extreme inner portions of the pin, and then compel the pin to move concurrently with the lever Q. The inner side of the pin 26 bears against the inner edge ill of the hole 32 and causes the lever 1 to swine: on it; :tul-

cruin 16 outwardly away from the law The pin '26 acts as a lever to torce the levers l and 2 to open substant' lly canal ang lar distances. It is clear that it the lever I moved away from the lever 2,,

is the pin 26 would cause the lever 2 to open substantially the same distance as the lever 1 opens.

Each lever has at its upper side opposite the seats for the wire line '7 an upstanding hook 28 to receive links or reins. as 29. tor suspending the clamp on the temper-screw of a well-drilling line. Each hoo; closed at the bottom by a sleeve 30 held in place by a bolt The clamp is adapted to grip various objects besides wire lines, such as pump rods for example.

I claim 1. In a clamp, a pair of opposed fulcrum blocks. a pair of levers having their outer ends between the blocks and t'ulcrumed against them. means passed through the blocks and the said ends of the levers "for maintaining the blocks a predetermined distance apart. there being gripping surfaces between the said means and the remaining ends otthe lovers, and means for moving the said remaining ends of the levers, one toward the other.

2. In a clamp, a pair of opposed fulcrum blocks having knife-edge ribs on their opposed faces, a pair of levers having their outer ends between the blocks and fulcrulned against the ribs, means passed through the blocks and the said ends of the levers for maintaining the blocks a predetermined distance apart. there being gripping surfees between the said means and the ren'iaining ends of the ,evcrs. and means for moving the said remaining ends of the levers. one toward the other.

3. In a clan'ip, a pair of opposed tulerum blocks. a pair of levers having their outer ends between the blocks tulcrumed against them. a bolt p: li'()l. 1jll the blocks and the said ends of l l' for maintaining the blocks a prede l tance apart. there being gri surface; between th said in ans and remaining' ends of the levers. and means for moving the i-eaid ren'iaining ends of the levers. one toward the other.

it. In a clamp. a pair of opposed tulcruin locks having knife-edge ribs on their opozsed faces, a pair of levers having their inter ends between the blocks and t'ulcrumed Q ainst the ribs, bolts passed through the i the said ends of the levers tor i ining the blocks a pre( etcrniincd dis- .i'e apart. the bolts being parallel and inflll ling tl e plane connecting l 0 being gripping sai e between said means and the remaining ends of the leve 's, and means for moving the said remaining ends of the levers. one toward the other.

5. In a clamp, a pair oi levers hinged together and a single means loosely carried by both the levers whereby the swinging of one lever away Il'Olll the other, causes the latter to swing away from the t'ormcr.

(5. In a clamp. a pair of levers hinged together, a common lever carried by the first levers. and hearing points carried by the hinged levers and engaged by the common lever to cause one hinged lever to swing outwardly when the other hinged lever is swung outwardly.

7. In a clamp. a pair of levers hinged together there being in the levers alined holes. and a cross-pin loosely seatet in the holes. the size of the pin and holes being such that when one lever is swung oi twardl it carries the pin with it. the pin engaging a wall of: the hole in the remaining lever and tore ing the latter to swing out vardly.

In testimony whereof. I hereunto ailiX my signature.

1 ill tl CLYDE S. \YRIGII'. I

the s-taid ribs loo 

